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High-temperature adsorption layers based on fluoridated polyimide and diatomite carrier Научная публикация

Журнал Russian Journal of Physical Chemistry A
ISSN: 0036-0244 , E-ISSN: 1531-863X
Вых. Данные Год: 2017, Том: 91, Номер: 9, Страницы: 1797-1804 Страниц : 8 DOI: 10.1134/S0036024417090321
Ключевые слова polyimides; pyrolysis; separation layers; gas chromatography
Авторы Yakovleva E.Yu. 1,2 , Shundrina I.K. 3 , Gerasimov E.Yu. 1,2
Организации
1 (Данные Web of science) Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Novosibirsk 630090, Russia
2 (Данные Web of science) Novosibirsk State Univ, Novosibirsk 630090, Russia
3 (Данные Web of science) Russian Acad Sci, Vorozhtsov Inst Organ Chem, Siberian Branch, Novosibirsk 630090, Russia

Реферат: A way of preparing separation layers by the pyrolysis of fluorinated polyimide obtained from 2,4,6-trimethyl-m-phenylenediamine (2,4,6-TMmPDA) and 2,2-bis(3',4'-dicarboxyphenyl)hexafluoropropane (6FDA) applied onto a diatomite carrier is described. Thermogravimetry, elemental analysis, low-temperature nitrogen adsorption, high-resolution electron microscopy, and gas chromatography are used to study changes in the texture and chromatographic characteristics of these layers. It is found that changes in the structure and the effectivity of separation characteristic of the layers depend on the temperature of pyrolysis, which ranges from 250 to 1100A degrees C. It is established that a layer of separation is formed at 250-350A degrees C, and the order of elution of hydrocarbons is similar to their chromatographic behavior on such stationary phases as OV-101. Layers of amorphous carbon formed on the surfaces of individual particles on a diatomite surface at 500-700A degrees C. These layers ensure highly stable and selective separation of permanent gases and hydrocarbons when they are present together.
Библиографическая ссылка: Yakovleva E.Y. , Shundrina I.K. , Gerasimov E.Y.
High-temperature adsorption layers based on fluoridated polyimide and diatomite carrier
Russian Journal of Physical Chemistry A. 2017. V.91. N9. P.1797-1804. DOI: 10.1134/S0036024417090321 WOS Scopus РИНЦ OpenAlex
Даты:
Опубликована online: 24 авг. 2017 г.
Опубликована в печати: 1 сент. 2017 г.
Идентификаторы БД:
Web of science: WOS:000408432000026
Scopus: 2-s2.0-85028352862
РИНЦ: 31061176
OpenAlex: W2749161266
Цитирование в БД:
БД Цитирований
Web of science 2
Scopus 2
OpenAlex 2
Альметрики: